I have no particular reason for doubting him.

我没有什么特别的理由怀疑他。

《牛津词典》

I've been up and down on him, but always said that I would love to be proven wrong for doubting him.

我对他的看法一直在变，但是我一直乐意我被指出我对他的意见是错的。

youdao

He hoped she wouldn't get too mad, because when she was mad he wondered if he should have married her, and doubting that made him feel crowded.

他希望她不会太生气，因为她太生气时，他就会想他当初该不该娶她，而这种怀疑使他很烦闷。

youdao

"Jeff, " as everyone in Redmond calls him, is doubting and realistic when Bill and Steve are overconfident and ready for battle.

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Then there is Sugata Mitra, recent winner of the 2013 TED Prize, whose serious doubting of modern education drove him to provide computers to kids struggling in slums to let them teach themselves.

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